#include <CSCChamberDataItr.h>

Public Member Functions
	CSCChamberDataItr (const char *buf)

bool	next ()

const CSCEventData &	operator* ()

	~CSCChamberDataItr ()

Private Member Functions
void	constructFromDCC (const CSCDCCEventData &)
	for DCC data. More...

void	constructFromDDU (const CSCDDUEventData &)
	for DDU-only data More...

void	initDDU ()
	sets theDDU & theNumberOfCSCs More...

Private Attributes
unsigned	theCurrentDDU

const CSCDCCEventData *	theDCCData
	make a new vector of DDUs (length 1). More...

CSCDDUDataItr *	theDDUItr

unsigned	theNumberOfDDUs

Detailed Description

Definition at line 15 of file CSCChamberDataItr.h.

Constructor & Destructor Documentation

CSCChamberDataItr::CSCChamberDataItr ( const char * buf )

construct from data buffer. Will figure out whether it's DCC or DDU

Definition at line 4 of file CSCChamberDataItr.cc.

References CSCDCCHeader::check(), CSCDCCEventData::dduData(), theCurrentDDU, theDCCData, theDDUItr, and theNumberOfDDUs.

                                                      :
   theDCCData(0),
   theCurrentDDU(0)
 {
   // first try if it's DCC data.
   const CSCDCCHeader * dccHeader 
     = reinterpret_cast<const CSCDCCHeader *>(buf);
   if(dccHeader->check())
     {
       theDCCData = new CSCDCCEventData((unsigned short *)buf);
       theNumberOfDDUs = theDCCData->dduData().size();
       theDDUItr = new CSCDDUDataItr( &(theDCCData->dduData()[theCurrentDDU]) );
     }
   else 
     {
       // it's DDU data, with only one DDU
       theDDUItr = new CSCDDUDataItr(buf);
       theNumberOfDDUs = 1;
     }
 }

CSCChamberDataItr::~CSCChamberDataItr ( )

Definition at line 26 of file CSCChamberDataItr.cc.

References theDCCData.

 {
    // safe, even if it's zero
    delete theDCCData;
 }

Member Function Documentation

void CSCChamberDataItr::constructFromDCC ( const CSCDCCEventData & )

private

for DCC data.

void CSCChamberDataItr::constructFromDDU ( const CSCDDUEventData & )

private

for DDU-only data

void CSCChamberDataItr::initDDU ( )

private

sets theDDU & theNumberOfCSCs

bool CSCChamberDataItr::next ( void )

Definition at line 33 of file CSCChamberDataItr.cc.

References CSCDCCEventData::dduData(), CSCDDUDataItr::next(), query::result, theCurrentDDU, theDCCData, theDDUItr, and theNumberOfDDUs.

 {
   bool result = true;
   if(!theDDUItr->next()) 
     {
       if(++theCurrentDDU >= theNumberOfDDUs)
     {
       result = false;
     }
       else
     {
       // the next DDU exists, so initialize an itr
       assert(theDCCData != 0);
       delete theDDUItr;
       theDDUItr = new CSCDDUDataItr( &(theDCCData->dduData()[theCurrentDDU]) );
     }
     }
   return result;
 }